OF–01Beam analysis / working shown
Outerfibre is beam-analysis software for structural engineers and learners. Build the model on the canvas, solve with a named method, and keep the working with the result.
02 / Checkable working
Each beam solve keeps the method, equations, diagrams and checks beside the model. Another engineer can follow the calculation without rebuilding it elsewhere.
The calculation record states which analysis method was used and why it is eligible.
Formulae, substituted values, units and evaluated results stay together.
Focused sketches and axial, shear-force and bending-moment diagrams remain tied to the model.
Equilibrium residuals travel with a browser print view that can be saved as PDF.
03 / Current scope
Outerfibre has separate workspaces for straight beams and connected 2D frames. Each keeps the selected analysis method, results and working with the model.
Beam workspace
MethodsStatic equilibrium · segmented equilibrium · Euler–Bernoulli beam stiffness
Frame workspace
Create nodes, members, supports and nodal actions, with A, I and E set for each member. Review the deformed shape, reactions, displacements, member end forces, calculation working and equilibrium residuals.
MethodsEquilibrium · slope-deflection · moment distribution · portal method · matrix stiffness
Frame takes nodal actions and uses first-order elastic analysis. The portal method is reported as approximate.
Scope boundaries: no load combinations, member design, design-code compliance, 3D, second-order, plastic, buckling, nonlinear or dynamic analysis. Frame does not include member loads, load cases or member end releases. Engineering judgement and independent verification remain the user’s responsibility.
04 / Before you start
The beam workspace models a straight beam with pin, roller and fixed supports, internal hinges, named load cases, angled point loads, piecewise-linear distributed loads and applied moments. It reports reactions plus axial, shear-force and bending-moment diagrams.
Auto checks method eligibility in a fixed order: static equilibrium, segmented equilibrium, then Euler–Bernoulli beam stiffness. The calculation package states the selected method and the reason. You can also request an eligible method explicitly; an ineligible request returns a domain error rather than silently switching.
Beam results include reactions, explanations, symbol definitions, focused diagrams, formulae, substituted values, units, section-force functions and equilibrium residuals. The calculation view can be printed or saved as PDF.
The frame workspace models connected, prismatic 2D members with pin, roller and fixed supports, nodal forces and moments, and member A, I and E properties. Depending on the model, eligible methods include equilibrium, slope-deflection, moment distribution, the portal method and matrix stiffness. Results include calculation working, deformed shape, reactions, displacements, member end forces and equilibrium residuals. Frame accepts nodal actions only; member loads, load cases and end releases are outside its current scope. Analysis is first-order elastic, with the portal method reported as approximate.
The current app is free while it is in active development. Access uses a one-time email sign-in link. Outerfibre is a calculation aid; inputs, method selection and independent verification remain the engineer’s responsibility.
Free while in active development
Model the beam, solve it, and keep the working with the result.
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